anonymous
  • anonymous
What values of x would make the following expression undefined? x^2-16/x^2-4x-12
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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myininaya
  • myininaya
In other words solve this equation: \[x^2-4x-12=0\]
myininaya
  • myininaya
@Somjit please don't just given answers. This is against the Code of Conduct (CoC). http://openstudy.com/code-of-conduct Thank you sir!
myininaya
  • myininaya
Can you factor \[x^2-4x-12\] ?

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myininaya
  • myininaya
oops and I meant give not given
anonymous
  • anonymous
is that (x-6)(x+2)?
myininaya
  • myininaya
Yep yep :)
myininaya
  • myininaya
So you have x-6=0 or x+2=0 Solve both and you are done! :)
anonymous
  • anonymous
but i got x=6 and x=-2. what would you do after then?
myininaya
  • myininaya
Yep yep! :)
anonymous
  • anonymous
thats it?
myininaya
  • myininaya
Yep :)
myininaya
  • myininaya
The fraction is undefined when the bottom is 0 (remember we don't divide by 0) The bottom is zero when x=6 or x=-2
anonymous
  • anonymous
k thanks!

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